John Robinson is director of corporate support at WMHT in Troy, N.Y., where he supervises an underwriting staff of three. He’s also the subject of the doc Get Off Your Knees: The John Robinson Story, which has its broadcast premiere tonight on the station. Robinson is a congenital amputee, born with stunted arms and legs. In addition to his pubcasting duties, he gives motivational speeches to school and community groups. “I’m never going to thumb wrestle with you, I’m never going to be the center of the basketball team,” Robinson tells students in the film. “What matters is how I deal with the body I have and the person that I am.”